SHADOWBYT3$ Allegedly Claims Nintendo Breach and Theft of Sensitive Data

Gbhackers •Divya • June 15, 2026

Threat intelligence sources have flagged a potential cybersecurity incident involving Nintendo after threat actor “SHADOWBYT3$” allegedly claimed responsibility for breaching internal systems and exfiltrating sensitive data. The claim surfaced on June 13, 2026, via underground monitoring channels and was later amplified by threat intelligence platform Hackmanac. At the time of writing, the incident remains unverified, […]

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This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

Shadowbyt3 Ransomware Group Claims Nintendo Employee Data Theft via TINYpulse On June 14, 2026, the ransomware group Shadowbyt3$ announced a breach involving TINYpulse, claiming to have exfiltrated 859 MB of sensitive employee data from Nintendo. The attack targeted TINYpulse, an HR platform, rather than Nintendo's gaming infrastructure, affecting 115 Nintendo employees and exposing personal information such as W9 forms and private messages. The attackers have set a ransom deadline of June 16, 2026, threatening to leak the data if their demands are not met. Security researchers have flagged the incident as 'pending verification,' indicating that the breach's authenticity is still under scrutiny. The incident highlights the risks associated with third-party SaaS providers as potential entry points for supply chain attacks. Organizations are advised to audit third-party integrations and monitor for unauthorized access attempts. No confirmed breaches of customer gaming accounts have been reported, and the incident primarily affects internal HR data. 19 sources 55

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SHADOWBYT3$ Allegedly Claims Nintendo Breach and Theft of Sensitive Data

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